Milesina dieteliana (Sydow & Sydow) Magnus, 1909

on Abies

gall

see Milesina spec..

spermogonia, aecia

Pinaceae, monophagous

Abies alba, cephalonica, concolor, nordmanniana, pinsapo.


on Polypodium

Milesina dieteliana: uredinia on Polypodium

Polypodium spec., England, South Hampshire, VC11: uredinia © Malcolm Storey, bioimages

Milesina dieteliana: uredinia

the spores are squeezed out in a filament; this happens almost the whole year, when the weahter is sufficiently moist.

Milesina dieteliana: urediniospores

urediniospores

Milesina dieteliana: uredinium (section)

Polypodium vulgare, from González-Fragoso (1925a): section through part of an uredinium: te upper cell layer is the epidermis of the host plant; the layer below is the wall of the uredinium: the peridium

gall

uredinia as small, hypophyllous pustules, covered by a discoloured epidermis that leaves a central pore open. Urediniospores club-like, wall with scattered, weak spinulation. Telia on extensive brown areas on overwintered fronds; teliospores intracellular in the epidermis, forming multicellular complexes.

uredinia, telia

Polypodiaceae, monophagous

Polypodium cambricum, interjectum, x mantoniae, vulgare.

Henderson (2000a) erroneously cites Dryopteris affinis, borreri, carthusiana, dilatata, filix-mas, but that is corrected in 2004.

synonyms

Milesia polypodii White, 1877-1878.

references

Brandenburger (1985a: 8, 15), Bubner, Buchheit, Friedrich ao (2019a), Eichhorn (1941a), Ellis & Ellis (1997a), Gäumann (1959a), González-Fragoso (1925a), Henderson (2000a, 2004a), Hick & Preece (1990a), Jage, Klenke, Kruse ao (2016a, Klenke & Scholler (2015a), Poelt & Zwetko (1997a), Tănase & Negrean (2007a), Termorshuizen & Swertz (2011a), Wilson & Henderson (1966a), Woods, Stringer, Evans & Chater (2015a).

mod 4.v.2019